If you've ever had to remove stubborn wallpaper, you know how frustrating and time-consuming that can be. Apartment Therapy offers a simple solution that can keep you from tearing your hair out while you're trying to tear the wallpaper off:

Combine (magical) vinegar with boiling water, spray on and let sit for a few minutes, then scrape the paper off with your putty knife. (She also scored the wallpaper first.)

Apparently the hot water looses the wallpaper glue, while the vinegar helps dissolve it.